55463032128 has 112 divisors (see below), whose sum is σ = 170552424960. Its totient is φ = 15577972224.

The previous prime is 55463032127. The next prime is 55463032129. The reversal of 55463032128 is 82123036455.

It is a happy number.

55463032128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55463032127) and next prime (55463032129).

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×55463032128² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55463032123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 270426 + ... + 429017.

Almost surely, 2^55463032128 is an apocalyptic number.

It is an amenable number.

55463032128 is an abundant number, since it is smaller than the sum of its proper divisors (115089392832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55463032128 is a wasteful number, since it uses less digits than its factorization.

55463032128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699524 (or 699514 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 55463032128 in words is "fifty-five billion, four hundred sixty-three million, thirty-two thousand, one hundred twenty-eight".